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    • 4. 发明申请
    • METHOD FOR PRODUCING FLAME-PROOFED THERMOPLASTIC MOLDING COMPOUNDS
    • 用于生产的阻燃热塑性模塑料
    • WO2012049264A3
    • 2013-02-21
    • PCT/EP2011067919
    • 2011-10-13
    • BASF SEMUELLER MATTHIASGUENTHERBERG NORBERT
    • MUELLER MATTHIASGUENTHERBERG NORBERT
    • B29C47/00B29C47/10
    • C08J3/203B29C47/0004B29C47/0014B29C47/0021B29C47/1045B29C47/1081B29C47/38B29C47/6087B29K2105/0005B29K2105/0026B29K2995/0016B29K2995/0059C08K7/24
    • The invention relates to a method for producing thermoplastic molding compounds, comprising: A) 40 to 99 wt % of at least one thermoplastic polymer, B) 1 to 60 wt % of a flame-proofing agent component containing an expandable graphite, and C) 0 to 60 wt % of further additives, by melt-mixing components A), B) and C) in a screw-type extruder, wherein the screw-type extruder, along the feed direction, comprises, in the following order, at least one dosing zone, a plastifying zone, a homogenizing zone, a second dosing zone, and a discharge zone, in that the dosing takes place into the screw-type extruder having the length L, wherein the length L is defined as the section starting with the first dosing unit for adding components A, B and/or C and ending, in the feed direction, at the discharge opening, a melt is generated after adding components A, B and C in the range of 0 liter to 0.15 liter in a first method step in the presence of component B1), and in a second method step, after the addition of component B1) in the range of 0.5 liter to 0.95 liter, component B1) is mixed into said melt, wherein said method offers technical advantages.
    • 一种制备热塑性模塑组合物的方法,包括:从40 A)至99重量%的至少一种热塑性聚合物的%,B)1至60重量阻燃剂%的组分,其包括可膨胀石墨,和C)0至60重量的其它添加剂的% 由组分a)的熔融混合包括的,B)和C)在螺杆挤出机,其中,沿着以该顺序输送方向的螺杆挤出机中的至少一个计量区,塑化区,均化区域,第二计量区,并通过所述剂量在放电区 螺杆挤出机的长度L,其中,所述长度L被定义为距离起点从所述第一计量装置用于加入组分A,B和/或C的并在所述出口开口终了的输送方向,在加入组分A,B和C的后 在不存在组分B1的第一工艺步骤)的熔体在0 L至0.15 L,未范围产生 D IN的第二工艺步骤中,除了组分B1)在0.5升〜0.95 L中的组分B1混合)的范围内后在该熔体中进行,提供了技术优势。